                                                         ::transformation.merge-datasets.source/mergeColumn
                                                         ::transformation.merge-datasets.source/mergeColumns]))
 
-(s/def ::transformation.merge-datasets.target/mergeColumn columnName?)
+(s/def ::transformation.merge-datasets.target/mergeColumn ::db.dsv.column.s/columnName)
 
 
 (s/def ::transformation.merge-datasets/target (s/keys :req-un [::transformation.merge-datasets.target/mergeColumn]))

(create-ns  'akvo.lumen.specs.transformation.remove-sort)
(alias 'transformation.remove-sort 'akvo.lumen.specs.transformation.remove-sort)

(s/def ::transformation.remove-sort/columnName columnName?)

(s/def ::transformation.remove-sort/args
  (s/keys :req-un [::transformation.remove-sort/columnName]))

            [clojure.string :as string]
            [clojure.tools.logging :as log])
  (:import [java.time Instant]))

(s/def ::type #{:transformation :undo})

